A blood pressure reading has two numbers: a systolic blood pressure and a diastolic blood pressure. The systolic blood pressure is the maximum pressure the blood exerts on the vessels when the heart is beating. The diastolic blood pressure is the pressure the blood exerts on the vessels in between heartbeats. Hypertension, or high blood pressure, begins when the systolic blood pressure remains above 140 or when the diastolic blood pressure remains above 90. Hypertension can be a result of increased blood flow through vessels or increased resistance to flow within the vessels.
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4

See below:
Yes this is used once daily for hypertension.Its a diuretic ie eliminates salt [ sodium chloride] which in turn helps to lower blood presssure.Salt restriction is advised as well.Its a combination medication to minimise the risk of pottassium loss as one of the components retains pottassium.
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9

No,why would you?:
Cozaar (losartan) is an arb class of blood pressure lowering medication, appropriate for those w/high blood pressure or hypertension. Midodrine is an Alpha receptor agonist used to treat patients w/orthostatic hypotension, whose blood pressure falls when they change positions. I can't imagine too many patients w/htn who are orthostatic w/treatment where you'd add another med rather than give fluids, etc.
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15

They are different:
Hctz (hydrochlorothiazide) is a mild diuretic that removes sodium from the body causing an increased volume of urine and lowers blood pressure by reducing the volume of 'salt water' in our circulatory system. Lisinopril inhibits a certain specialized chemical reaction in our bodies that leads to a reduced retention of sodium in our bodies but also a reduced tension on our blood vessels, thus lowering blood pressure.
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